src/initscripts/init.d/cpufreq

   1 #!/bin/sh
   2 ########################################################################
   3 # Begin $rc_base/init.d/cpufreq
   4 #
   5 # Description : Initalisize and startup cpufreq and set a governor
   6 #
   7 # Authors     : Arne Fitzenreiter - arne_f@ipfire.org
   8 #
   9 # Version     : 00.00
  10 #
  11 # Notes       :
  12 #
  13 ########################################################################
  14
  15 . /etc/sysconfig/rc
  16 . ${rc_functions}
  17
  18 case "${1}" in
  19         start)
  20                 boot_mesg -n "Starting cpufreq... "
  21
  22                 # try cpufreq hardware depend modules
  23                 for module in acpi-cpufreq cpufreq-nforce2 e-powersaver \
  24                     gx-suspmod longhaul longrun p4-clockmod powernow-k6 \
  25                     powernow-k7 powernow-k8 speedstep-centrino speedstep-ich \
  26                     speedstep-smi; do
  27                     modprobe $module > /dev/null 2>&1;
  28                     if [ ${?} = 0 ]; then
  29                         boot_mesg -n "$SUCCESS$module$NORMAL "
  30                     fi
  31                 done
  32                 boot_mesg ""
  33
  34                 # load cqufreq governors
  35                 modprobe cpufreq_conservative
  36                 modprobe cpufreq_ondemand
  37                 modprobe cpufreq_powersave
  38                 modprobe cpufreq_userspace
  39
  40                 CPUCOUNT=`ls /sys/devices/system/cpu/cpu*/cpufreq/affected_cpus | wc -l`;
  41                 let CPUCOUNT-=1
  42                 # Set the governor to ondemand to test if it works
  43                 cpufreq-set -g ondemand
  44                 if [ ${?} = 0 ]; then
  45                     # activate cpufreq collectd module
  46                     sed -i -e "s|^#LoadPlugin cpufreq|LoadPlugin cpufreq|g" /etc/collectd.conf
  47
  48                     # Set the governor to ondemand for all cpus
  49                     for i in `seq 0 $CPUCOUNT`;
  50                     do
  51                         cpufreq-set -c $i -g ondemand
  52                     done
  53                     echo_ok;
  54                 else
  55                     echo_failure;
  56                 fi
  57                 exit 0;
  58                 ;;
  59         *)
  60                 echo "Usage: ${0} {start}"
  61                 exit 1
  62                 ;;
  63 esac
  64
  65 # End $rc_base/init.d/cpufreq